FIRST LADY INAUGURATES NEW SERIES OF RADIO TALKS. WASHINGTON, D.C. APRIL 30. IN THE FIRST BROADCAST OPENING HER NEW SERIES OF TWICE-WEEKLY INFORMAL RADIO TALKS FOR A COMMERCIAL SPONSOR, MRS. ROOSEVELT TODAY SAID HER DESIRE TO ESCAPE A 'FEATHER-BED KIND OF EXISTENCE AT THE WHITE HOUSE' WAS ONE OF HER REASONS FOR MAKING EXTENSIVE TRIPS AROUND THE COUNTRY